http://cypherpunk-handbook.i2p/articles/openbsd.html
Using doas on linux is possible, although with many problems in
many distros. Fedora Secureblue removed suid-root, sudo, su and
pkexec to use run0, reinforcing sudo insecurity. 9 - freezero(3) The libc function freezero(3) allows programs to free memory that
holds sensitive data, and to overwrite it with zeros.